12x30x1 Economy Air Filter GDS Series by Glasfloss - Box of 6Protect your HVAC system with Glasfloss GDS 12x30x1 disposable furnace filters! They're your go to solution for cleaner indoor air, reducing dust, pollen, and other pesky pollutants. These filters are built tough with a double strut design for durability and boast a 10% larger surface area than regular fiberglass filters. Crafted with a sturdy craftboard frame and bonded fiberglass media, these filters offer reliable protection for your HVAC

Protect your HVAC system with Glasfloss GDS 22x22x1 disposable furnace filters

Initial Resistance:

Aftermarket replacement filter for Honeywell FC100A1011

15-5/8" x 29-5/8" x 3/4"

20" x 30" x 1"

These filters are built tough with a double-strut design for durability and boast a 10% larger surface area than regular fiberglass filters

Nominal Size:

21-1/2" x 23-5/16" x 7/8" (21

FEM4X3600A

16" x 19-7/8" x 4-3/8" (16" x 19

FSM4P3000A

Protect your HVAC system with Glasfloss GDS 18x24x1 disposable furnace filters